Device for regulating the temperature of ink-rollers



W. S. WARNOCK.

DEVICE roa maeuunms THE TEMPERATURE o r mx nouns.

APPLICATION FILED SEPT- |8 |920. 1,369,507. Patented Feb. 22, 1921.

3 SHEETSSHEET l.

W. S. WARNOCK.

DEVICE FOR REGULATING THE TEMPERATURE OF INK ROLLERS. 1,369,507.

APPLICATION FILED SEPT-18, I920- Patented Feb. 22, 1921.

3 SHEETS-SHEET W. S. WARNOCK.

DEVICE FOR REGULATING THE TEMPERATURE OF INK ROLLERS.

L 2. 9 1T 2 bu mm m H m P APPLICATION FILED SEPT. 18, 1920. 1,369,507.

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' To all whomit may concern.

UNITED STATES PATENT OFFICE.

WALLACE S. WABNOGK, OF CHICAGO, ILLINOIS.

' DEVICE FOR REGULATING THE TEMPEBATUREOF 1N K-ROLLERS.

Application filed September 18, 1920. Serial No. 411,348.

Be it known that I, WALLACE S. WAR- NooK, a citizen of the United States, residing at 7726 Eastlake Terrace, Chica o in the county of Cook and State of Ilino1s, have invented a new and useful Improvement in Devices for Regulating the Temperature of Ink-Rollers, of which the fol lowing is a specification. l0

This invention relates particularly to means for regulating the temperature of transfer rollers of the inking mechanism of a press.

The primary object is to provide means for maintaining the rollers at a suitable temperature to keep the inlg in thebest con-v dition for use and preserve the composition rollers.

The invention is illustrated in its preferred embodiment in the accompanying drawings in which- Figure 1 represents a broken side elevational view of the inking mechanism of a' press, embodying my invention; Fig. 2, a similar View taken from the opposite side of the machine; Fig. 3, a broken plan view of the same; Fig. 4;, a broken view showing the modification of the means for admitting hot and cold water tothe rollers; Fig. 5, a vertical sectional view taken as indicated at line 5 of Fig. 1; Fig. 6, a sectional detailed view taken as indicated at line 6 of Fig. 5, this view showing the intake end of one of the rollers; Fig. '7, a sectional View taken as indicated at line 7 of Fig. 6; and Fig. 8, a sectional view taken as indicated at line. 8 of Fig. 5, this view showing the outlet end of one of the rollers.

In the construction illustrated, A repre sents the bed which carries the inking mechanism of a press, and in which is mounted a longitudinally reciprocableink-plate A B, an oscillating transfer roller which receives ink from a pair of rollers B which take their supply from the plate A, the roller B serving to transfer the ink to a roller B which aids-in distributing the ink on the roller B; C, a transfer roller which receives ink from a pair of rollers C which take their supply from the plate A, the roller C serving to transfer the ink to a roller C which aids in distributing the ink on the roller C; D, means for admitting wa ter at a given temperature to the interiors of the transfer rollers B and C; and E,

means for educting water from the rollers B and C.

It is common, in this type of machine, to apply ll'lk to the reciprocating plate A by means of transfer rollers (not shown) which take the ink from the fount and distribute it on the plate A. The ink is carried by the plate beneath the air of rollers B and the pair of rollers is taken up by these rollers and distributed over the longitudinally reciprocating rollers B and C, whlch act as distributing rollers, and finally it is taken from the rollers B and C and transferred to the form (not shown), which reciprocates in the same plane as the inkplate A.

The pair of rollers B and the pair of rollers C are non oscillating, these rollers being supported in bearings 1 with which the bedded machine is provided. The rollers B and C are supported in bearings 2 at a higher plane; and the rollers B and C are supported by bearings 3 at a still higher plane.

The rollers B and C are preferably hollow steel rollers and are provided with long hollow shafts 4 which are equipped near one end with collars 5. These collars are engaged by an oscillating lever 6, which serves in the usual manner to oscillate the rollers B and C longitudinally. The other rollers of each group may be composition rollers. The shafts of the rollers are connected by pinions 7 in the usual manner; and by suitable gearing (not 'shown) the rollers may be turned in one direction and in the other direction, as is common in the art.

The means D for admitting water of desired temperature to the rollers B and C comprises an inlet pipe 8 which may be regarded as a hot water pipe, an inlet pipe 9 which may be regarded as a cold water pipe, these pipes serving-to deliver water through a single connection 10 to a fitting 11 which serves as a mixing chamber, in'which fitting is mounted a thermometer 12, a pipe 13 leading from the fitting 11 and connecting, through a flexible hose 14 with the intake end of the roller B; and another pipe 15 leading from the fitting 11 in the opposite direction and connecting, through a flexible Specification of Letters Patent. Patented F b. 22 1921 the flow of water there'through, one may emthe desired temperature may becontrolled Such thermostat may be purchased on the market and applied in the manner understood by those skilled in the art, the device serving to regulate the admission to the rollers B and C, according to the temperature of the'water. It should be added that the valves 8 and 9 may be so regulated as to admit to the mixing chamber 10, water of somewhat higher temperature than 1s desired for passage through the rollers; and when the temperature in the fitting 11 falls below' a predetermined degree, the thermostat will operate to admit warmer water to the fittingll and thence throlgh the pipes 13 and 15 to the rollers B and The pipes 8 and 9 are equipped with endvalves 8" and 9, by means of which-the admission of water may be regu the temperature in the mixing chamber which is desired for admission to the rolls.-

If desired, instead of. employing the vfitting 10 and an automatic va ve for regulating ploy a plane connection 10 in the'manner shown in 1 mission of the water to secure a mixture of wholly by means of .the valves 8" and 9 shown in Fig. 1.

The water outlet device E comprises'a flexible hose 18 connected with the outlet'end of the roller B; afiexible hose 19 connected with the outlet end of the roller 0; branch pipes 18 and 19 connected withthe hose mentioned and communicating through a common fittin' 20'with a common outlet pi e 21 which 1s equipped with a .valve 21.

he manner of connecting'the hose with the inlet and outlet ends of. the rollers will be understood from Fi inclusive. Thus,-a t'the mlet end of the roller B the hose 14 is attached to a nipple 22 which projects radially from a metal bulb 23 WhlOh'lS secured to the outer end of a 'short tube, or small pipe 24, which rojects from and is journaled in a stufling-Eox 25 which is secured to the inlet end of the shaft 4.

j The details will appear from Figs. 5, 6 and 7 The stufling-box rotates about the tube 24, which tube is rovided at its inner end,

with a flange or co lar 24. The stuffing-box 25 comprises a cup 25 having a taper threaded shank 25 which screws into the end of the tubular shaft 4; a gland. 25 which encircles the tube 24 and screws into the outer end of the-cup 25'; a lock-nut 25 applied to the gland; a fiber washer 25 in terposed between the gland 25 and the collar 24"; a fiber washer 25 on the inner end of the tube 24 and interposed between the collar 24 and the bottom of the cu 25 and a felt washer 25 encircling the ber washer 25.

Oil ducts 25 and 25 are provided in the lated to give;

g. 4. In such case, the ad- 1'and2 and 6to8 as a pivotal connection for one end of an extensible link 26, which comprises two telescoping sections 26 and 26", as shown in Fig. 1. The intake connection for the hose 16 which communicates with the roller C isthe same as that just described, and the parts are desi nated by the same reference characters. Te other end of the extensiblelink 26 is pivotally connected with one of the veniently attaching the hose to the nipple'22.

As shown in Fig. 6, the nipple 22 has. its outer end threaded interiorly and fitted with a reducing nipple'22', which has a smaller here. This feature is employed for the reason that it is desired to' provide the rollers with smaller induction passages than are the eduction passages, thus avoiding any back pressure which might tend to cause leakage at the stuflin -boxes rovided at the ends of theshafts o the rol erst i At the eduction ends of the rollers B and C are provided connections for the hose 18 and 19 which are similar in construction to the construction alread described, and the parts are therefore 'inghcated by the same reference characters. In this case however, the reducing nip le 22" with which the nip 'ple 22 is provide has a larger bore than has the corres onding nipple at the inlet end. This will seen b o servation of F' 6 and 8. Also, the s ank 25".of the stu n box 25, instead of being screwed direct y into the end of the shaft 4 is screwed into an enlarged connecting sleeve 27 as shown inFig.5. From the description iven, it will be understood that the ink dlstributing rollers B and C have a movement of oscillation longitudinally, as well as a movement of rotation and reverse rotation, .as is usual in this type of mechanism. Also, it will be understood from Fig. 3 that the rollers B and C move simultaneously in o posite directions in making their lpngitu inal oscillations, v

hence the necessity of employing the extensible connecting links '26. These links serve to maintain the non-rotating. tubes 24 in a given angular position, and prevent the tubes fromrotating with the rollers. In the operation of the a paratus, hot water may be admitted throng the inlet pipe 8, for example,. and cold water maybe admitted through the inlet pipe 9, the mixing being effected during the passage of the two streams of water after they'unite and while they are bein' conducted in the fitting 11, where the resu tant temperature of the water is registered by the thermometer. Thus,

water of the proper temperature to maintain the ink in the best condition for use is ad mitted to themetal rollers B and C, and this temperature is communicated to the other rollers of the nests of rollers. In case the printing, press is operating in a hot climate or during very hot weather in a temperate climate, cooling water may be introduced in the system, as may be necessary to maintain the ink of the desired consistency.

It may be added that it is a most important object of the invention to maintain the composition rollers of the inking mechanism at a proper temperature to prevent the rollers from being injured in the operation f themechanism. It may be explained that 1n the operation of such inking mechanism, the friction developed is such as to cause heating and thus injure the stability of the composition of which the inking rollers are ordinarily formed. In other words, especially in hot weather, or in fast-running presses in ordinary temperatures, there is danger of the composition of the rollers becoming excessively heated and melted. This 'danger is obviated by the present invention, and the rollers may be kept at the desired temperature, while any desired working temperature is maintained in the room in whlch the press is situated. In cold weather, or in the operation of starting a press at any tlme,

it is desirable to be able to heat the rollers for the purpose of making them sufficiently soft or tacky to properly distribute the ink.

While the inking rollers are shown associated with a reciprocating inking-plate of a flat-bed press, it will be understood thatthe ink may be delivered to the inking rollers in any suitable manner, and that the ink may be transferred by the rollers to any form of printing member, as, for instance, to the form cylinder of the rotary press.

The improved apparatus meets a long felt want in the art, and has proven, in practical operation, thoroughly effective for the purose. p The foregoing detailed description has been given for clearness of understanding only and no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible in view of the prior art.

What I regard as new, and desire to secure by Letters Patent, is:

1. The combination with a-hollow inking roller provided with a tubular shaft, of means for mixing hot and cold water and admitting the mixed water to the roller through one end of the shaft, and means for educting the water from the other end of r the shaft.

the temperature of the mixture, means for admitting the mixed Water to one end of said shaft, and means for educting water from the other end of said shaft.

3. In apparatus of the character set forth, the combination of a pair of rotating, longitudinally oscillating hollow inking rollers provided with tubular shafts, a source of water supply, means for conducting the water to the vicinity of the admission ends of said shafts, stuffing-boxes applied to the ends ofsaid shafts, said stufling-boxes having tubular members journaled therein, the outer ends of said tubular members being connected with the water conducting means, an extensible link having radial pivotal connection with the outer ends of said tubular members, and means for educting water from the discharge ends of said tubular shafts.

4. In apparatus of the character set forth, the combination of a pair of rotating, longitudinally oscillating hollow inking rollers provided with tubular'shafts, stufiing-boxes applied to the admission ends of said shafts, tubular members journaled in said stuflingboxes and equipped at their. outer ends with radial studs, an extensible link pivotally connected at its end with said radial studs, hose connected with said tubular members, a Water mixing device communicating with said hose, hot and cold water devices com-. municating with said water mixing device and equipped with valves, and means for educting the water from the discharge ends of said tubular shafts.

5. In apparatus of the character set forth, the combination of a pair of rotating, longitudinally oscillatin hollow inking rollers provided with tubufitr shafts equipped with stufling-boxes, tubular members projectin from said stufiing-boxes and equipped wit radial studs, extensible links having their ends pivotally connected with said radial studs, means for admitting fluid at regulated temperature to the tubular members at one end of the inking rollers, and means for conducting fluid from the tubular members at the other end of the inking rollers.

6. In apparatus of the character set forth, '115 the combination with a pair of rotating, longitudinally reciprocating hollow inkin rollers equipped with tubular shafts, o temperature regulating means comprising means for educting water from the tubular shafts at one end, and means for introducing water into said tubular shafts at the other end, comprising stufiing-boxes secured to the shafts at their admission ends, tubes projecting from said stufiing-boxes and equipped with bulbs provided with radial studs and radial nipples, an extensible link having its ends pivotally connected with said radial studs, hose connected with said nipples, branch pipes connected with said hose and connected also with a fitting, to said pipes,

valved hot water and cold water admission pipes connected with a common fitting, and a union connecting said first named fitting with said second named fitting.

7. In apparatus of the character set forth, the combination with a pair of rotating, longitudinally reci rocating hollow inking rollers, of means or admitting water thereto at regulated temperature, comprising a mixing device, conduits leading from the mixing device and communicating with the interiors of said rollers at one end thereof, hot and cold water admission pipes communieating with said mixing device, and an automatic valve regulating the passage of water throu h the mixing device.

8. 1 h apparatus of the character set forth, the combination with a pair of rotating, longitudinally reciprocating hollow inking rollers, of means for admitting water thereto at regulated temperature, comprising a mixing device, conduits leading from the mixing device and communicating with the interiors of said rollers at one end thereof, hot and cold-water admission pipes communicating with said mixing device, an automatic valve regulating the passage of water through the mixing device, and hand valves controlling the passage of water through the hot and cold wateradmission pipes.

9. In apparatus of the character set forth, the combination with a rotating, longitudinally reciprocating hollow inking roller equipped with a hollow shaft, stufiing-box securedv to one end of said shaft, a tubular member journaled in said stufling-box equipped at its outer end with a bulb, a mpple carried by said bulb and adapted for connection with a hose and a radial stud carried by said bulb and adapted to serve as a pivotal connection for a connecting rod.

10. The combination of a reciprocating.

inking plate, a pair of non-oscillating inking rollers contacting with saidplate, a rotating, longitudinally oscillating distributin roller contacting with said first named ro lers, a non-oscillating inking roller contacting with saidjdistributing roller and,

contacting with said distributing roller and adapted to conveythe ink to the form, means for admitting'wate'r of regulated tem-' perature to one end of the distributing roller, and means for educting the water from the other end of the distributing roller,

oscillating distribv the eduction passage from the distributing roller being larger than the induction passage to said distributing roller.

WALLACE swAnNooK 

